Uploaded October 2025 | Updated September 2026, 3 weeks ago

---

Want to restore the planet’s ecosystems and see your impact in monthly videos? The first 100 people to join Planet Wild with my code ASYLUM10 will get the first month for free at: planetwild.com/r/scienceasylum/join
If you want to get to know them better first, check out their project rescuing orphaned seal pups: planetwild.com/r/scienceasylum/m30

Distant galaxies are not only receding from us, they're accelerating away from us. Dark energy plays a role in that, but not in the way you think.

Watch this video Ad-Free and Sponsor-Free on Nebula:
nebula.tv/videos/scienceasylum-how-dark-energy-accelerates-the-universe

Nick Lucid - Host, Writer, Editor, Animator
Em Lucid - Producer
________________________________
VIDEO ANNOTATIONS/CARDS

Dark Matter Exists:
youtu.be/AAhWLN2qHGs
nebula.tv/videos/thescienceasylum-dark-matter-exists-heres-how-we-know

Is Gravity A Force?
youtu.be/qVsaLZs7kag
nebula.tv/videos/scienceasylum-hot-take-gravity-is-still-a-force
________________________________
SUPPORT THE SCIENCE ASYLUM

For Direct Support, Merch, and Products:
scienceasylum.com

For Alternative Support Options...

Patreon:
patreon.com/ScienceAsylum

Sign-Up for Nebula:
go.nebula.tv/scienceasylum

YouTube Membership:
youtube.com/channel/UCXgNowiGxwwnLeQ7DXTwXPg/join
________________________________
HUGE THANK YOU TO THESE SUPPORTERS

Asylum Orderlies:
Chloë Joan López, Dhruv Singhal, James Smith, Joel Wolhendler, Peter Engrav

Einsteinium Crazies:
Benjamin Sharef, Dan Sullivan, Eoin O'Sullivan, Jonathan Lima, Joseph Salomone, Kevin Flanagan, Matias Cveczilberg

Plutonium Crazies:
Al Davis, Compuart, Kevin MacLean, Rick Myers

Platinum Crazies:
Clayton Bruckert, Christopher Bennett, David Johnston, E. W. Darbyshire, JJS, Jonathan Reel, Li-Ce Hu, Marino Hernandez, Mr. Orn Jonasar, Ulrich
________________________________
SOURCES

Sean Carroll on Dark Energy:
preposterousuniverse.com/blog/2013/11/16/why-does-dark-energy-make-the-universe-accelerate

Hubble's Law:
http://hyperphysics.phy-astr.gsu.edu/hbase/Astro/hubble.html
lambda.gsfc.nasa.gov/education/graphic_history/hubb_const.html
https://news.uchicago.edu/explainer/hubble-constant-explained

Friedmann Equations:
http://hyperphysics.phy-astr.gsu.edu/hbase/Astro/fried.html
https://ned.ipac.caltech.edu/level5/Peacock/Peacock3_2.html
________________________________
LINKS TO COMMENTS

youtube.com/watch?v=3tOhNRjIHVc&lc=UgztmioqXpi_IHgHpi94AaABAg
________________________________
IMAGE/VIDEO CREDITS

Big Bang:
svs.gsfc.nasa.gov/12656

Galactic Rotation:
eso.org/public/videos/eso1709b

Galactic Collision:
hubblesite.org/contents/media/videos/2012/20/700-Video.html

Nebula Tour and Solar System Formation:
svs.gsfc.nasa.gov/10662
________________________________
TIME CODES

00:00 Intro
00:56 What is Dark Energy?
02:29 Expansion Explained
04:12 Hubble Parameter
05:37 How Dark Energy Works
06:52 Doubling Rates
08:18 What Dark Energy Actually Does
09:01 Maintaining Balance on Planet Earth
10:36 Featured Comment